FeeTech FS9257D

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-26

Identity
Brand
Product Number	FS9257D
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 30.60 oz-in 4.8V 27.80 oz-in Bottom 10%
Speed	6.0V 0.07 sec/60° 4.8V 0.08 sec/60° Above Average
Physical
Weight	0.95 ozAverage
Dimensions	L 1.425 in W 0.598 in H 1.15 in
Drivetrain
Motor Type	Brushed
Gears	Plastic
Rotation Mode	Positional
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	180°
Pulse Width	900-2100 µs
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal) estimate
Origin
Country of Origin	China

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Bottom 10% Stronger than 8% of 290 Digital Mini servos at 4.8V
Speed	Above Average Faster than 83% of 293 Digital Mini servos at 4.8V
Weight	Average Lighter than 40% of 505 Digital Mini servos

Performance Analysis

Shaft Power	0.64–0.81 W
Power Density	0.825 W/in³ More power-dense than 10% of 482 Digital Mini servos
Torque Density	1.0296 oz-in/g Stronger than 3% of 286 Digital Mini servos
Torque-to-Volume Ratio	28.37 oz-in/in³ Denser torque than 3% of 288 Digital Mini servos
Speed-to-Weight	0.46296 (1/sec·g) Faster than 75% of 289 Digital Mini servos
Speed-Torque Trade-off	2.22 Better balanced than 6% of 288 Digital Mini servos
Torque Gain per Volt	8.39%/V More voltage-responsive (torque) than 3% of 257 Digital Mini servos
Speed Gain per Volt	11.90%/V More voltage-responsive (speed) than 23% of 262 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 19% of 405 Digital Mini servos